Radiator for internal-combustion engines



F. GARGUILO.

RADIATOREOR INTERNAL COMBUSTION ENGINES, APPLICATION rxLED1uNE'1s,1921.

Lf. Patented Aug. 2 v22.

2 SHEETS-S FREDERICK GARGULO, 0F NEW HAVEN, CONNECTICUQ- Specicaton ofLetters Patent. Patented Aug. 22, 1922,

Application led .Tune 16, 1921. Serial No. 477,900.

To all whom t may concern.'

Be it known that l, Fnnonnron GARGUILO, a citizen of the United States,residing at New Haven, in the county of New Haven and StateoiConnecticut, have invented a new and usetul improvement in Radiatorsiior lnternalllombustion Engines, and l do hereby declare the following,when taken in connection with the accompanying drawings and thecharacters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said dra-wings constitute part ofthis application, vand represent, in-

Fig. 1 a broken view in front elevation of a section of aradiator-structure embodying my invention.

Fig. 2 an edge view thereof.

Fig. 3 a vertical sectional view thereof on the line 3--3 of Figure 2. s

Fig. 4l a horizontal sectional view thereof on thefline 4-4 of Figure1.` s

Fig. 5 a iront edge view of a portion of a stock-strip such as l use inthe production of my improved radiator-structiu'e.

My invention relates lto an improvement in radiators for the coolingsystems of internal combustion engines such as are employed forautomobiles, air craft, etc., the object being to produce a` structureof superior stiffness and efliciency, having the external appearance,front and back, of a radiator of the so-called cellular type, butinternally distinguished therefrom by having verticallyintercommunicating air-passages, the walls ot which are inclined tocommingle the air and deflect it upwardly and downwardly.

lith these ends in view, my invention consists in a radiator-unit havingcellular air-inlet and airoutlet openings larger than and leading intoand out oi' upwardly and downwardly inclined air-passages verticallyintercommunicating throughout the length` of the unit.

My invention, further consists in a radiator-structurey having certaindetails of construction as will be hereinafter described and pointed outin the claims.

In carrying out my invention, as herein shown, l employ thin,sheet-metal stockstrips 6 having their edges correspondingly offset toJform combined spacing-and-assem-- bling ilanges 7 which are oit'set tohalf the depth of the ultimate water-channels 8 of the completedstructure, as shown in Figure 4,

the strip and extending through and including the oilset combinedspacing-and-assembling-flanges 7 thereof, as clearly shown in Figure 2.The apices of the corrugations 9 are flattened as at 10 on theair-passage side of thestrip to the plane of the apices 11 of thecorrugations of the flanges 7 on the same side of the strip, while theapices of the corrugations 9 onfthe water channel side of the strip, areflattened as at 12, below the level of the apices 13 of the corrugationsof the flanges 7 on the `water-channel side of the strip, the flattenedapices 10 being wider than the flattened apices 12.

Stock-strips formed as above vdescribed are transversely Jfolded midwayof their lengths, as at 14 (Figure 3) and lock-seamed at their oppositeends, as at15 (Figure 3), to form the radiator-units- By folding eachunit-strip as described, cellular air-inlet openings 16 are formedin thefront edge ci the unit, while corresponding air-outlet openings 17 .areformed in the rear edge of the unit, these cellular openings giving theradiator-structure of my invention the external front and backappearance of true cellular radiator-structures. These openings 16 and17 lead into and out of air-passages 18 (Figurefi) having upwardly anddownwardly inclined walls and vertically intercommunicating from the toptothe bottom of the unit, the said openings being as much larger thanthe said passages as the flanges are offset from the planes of thestock-strips.A The broken air-passages are intermediate between the saidopenings 16 and 17 which open into and lead out of them. By folding thestrip at 11i, as described, the opposed apices 11 of the flanges 7 arebrought into contact, as shown in Figures 1 and 3, while, at the sametime, the opposed flattened apices 10 of the corrugations of the stripare brought into localized line contact inidway the width or" the strip,as shown by the diamond-shaped outlines 19, appearing in Figures 2 and4E, the peculiar diamondshaped form of the Contact 19 proceeding fromthe crossing of the apices 10 at angles determined by the inclinedcharacter of the corrugations of the strip. rlfhe radiatorunits soproduced are nested in the usual manner for the production of thewaterchannels S, which are continuous from the y top to the bottom ofthe structure, as well as from front to rear, the constriction-of thesepassages being avoided by the slight iattening of the apices l2 of thecorrugations on the water-channel side of the strip. In order to nestsuch units, the alternate units must be formed from strips identical inevery other respect but oppositely corrugated.

The radiator-structure thus produced is characterized by having thefront and back appearance of an ordinary cellular radiator on accountofits cellular air-intake openings and cellular air-outlet openings, butinternally all of the air-passages, with their upwardly anddownwardly'inclined walls, due to the inclination of the corrugations ofthe strip, are 'vertically in'tercoinmunicating, so that all the pencilsvof air entering the cellular air-inlet openings will be broken up andc'ommingled, insteadi'of passing directly from front to rear through theradiator'structure, as do theintegral air-pencils of the cellularradiator-structures of the prior art, whereby my improved structure isincreased in efficiency, since all portions of the air are brought lintocontact with the walls of the Waterchannels, which are continuous fromthe top tothe bottom of the structure, without substantial constriction.In other words, the

l pencils of air entering the cellular air-intake openings 16 completelyloose their identity as pencils of air before'theairis dischargedthrough the cellular air-outlet openings 1.7 at the back of theradiator-structure.

I claim:

1. A sheet-metal stoclcstrip for use in producing radiator-structuresfor internal combustion engines, the said stock-strip having its edgesoffset to produce combined lspacing-and-assembling flanges, and beingtransversely corrugated from edge to edge at an inclination to itslongitudinal axis through the said flanges, and the apicesof thecorrugations on the air-passage side of the strip being flattened topermit the apices of the corrugations of the flanges tol come intocontact with each other when the strip is folded upon itself for theproduction of axis, and the apices of the corrugations on theair-passage side of the strip being attened to permit the apices of theflanges on the said side of the strip to make contact.

3. A radiatorstructure for internal combustion engines, consisting of aplurality of radiator-units, each consisting of a sheetmetal stripfolded upon itself and having its edges formed with offsetting combinedspacing-and-assembling flanges, and formed throughout its length withtransverse corrugations extending from edge to edge and inclined to itslongitudinal axis, and the apices of the corrugations on the air-passageside of the strip being flattened toy permit the apicesof the flanges onthe same sides of the strip to make contact, the radiatoistructure thusproduced having cellular air-inlet openings and cellularfairoutletopenings, and intermediate,lverticallyintercommunicating, upwardly anddownwardly inclined -air-pas`sages,rand continuous water-channels.

In testimony whereof, I have signed this specification in the presenceofy two subscribing witnesses.

FREDERICK GARGUILO.

TWitnesses: i l

HELEN S. LANYON, (3i-ms, OPPE,

